Chapter 11: The Cardiovascular System

Front 1

Blood leaving the subclavian artery flows directly into the ________ before flowing into the arm as the brachial artery.

Back 1

External iliac artery.

Front 2

The right and left renal veins empty blood into the:

Back 2

Inferior vena cava.

Front 3

The Purjinkle fibers are indicated by label:

Back 3

E

Front 4

The SA Node is indicated by letter:

Back 4

A

Front 5

The specific chamber of the heart that is indicated by letter A is called the:

Back 5

Right atrium.

Front 6

The AV Node is indicated by letter:

Back 6

B

Front 7

The bundle branches are indicated by letter:

Back 7

D

Front 8

The pulmonary arteries carry deoxygenated blood to the lungs.

Back 8

True

Front 9

The thick layer of the heart wall that contains contractile cardiac muscle tissue is the:

Back 9

Myocardium

Front 10

The atria of the heart are the chambers that are:

Back 10

Located superiorly and are the receiving chambers of the heart.

Front 11

Which one of the following areas receives blood directly from the four pulmonary veins:

Back 11

Left atrium.

Front 12

Which one of the following blood vessels is NOT part of the systemic circulation:

Back 12

Pulmonary arteries.

Front 13

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the:

Back 13

Left ventricle to the left atrium.

Front 14

The tricuspid valve is located between the:

Back 14

Right atrium and right ventricle.

Front 15

The superior vena cava empties:

Back 15

Deoxygenated blood into the right atrium.

Front 16

Which one of the following blood vessels carries oxygenated blood:

Back 16

Pulmonary vein.

Front 17

The aortic semilunar valve is composed of:

Back 17

Three cusps and opens when the left ventricle contracts.

Front 18

Which one of the following are direct branches of the left coronary artery:

Back 18

Anterior interventricular and circumflex arteries.

Front 19

The crescent-shaped pacemaker of the heart that initiates depolarization under normal conditions is the:

Back 19

Sinoatrial (SA) Node.

Front 20

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart:

Back 20

SA Node, AV Node, AV Bundle, right and left bundle branches, Purkinje fibers

Front 21

A heart rate that is substantially lower than normal (less than 60 beats per minute) is called:

Back 21

Bradycardia.

Front 22

Which one of the following vessels receives blood during the ventricular systole:

Back 22

Pumonary trunk.

Front 23

The mitral valve is normally closed:

Back 23

When the ventricle is in systole.

Front 24

Into which one of the following vessels does blood enter during ventricular systole:

Back 24

Both A and C.

Front 25

Which one of the following is true concerning the lub-dup sounds of the heart:

Back 25

The first sound is longer and louder and is caused by the closure of the AV valves; the second sound is shorter and sharper and is caused by closure of the semilunar valves.

Front 26

The volume of blood pumped out by each ventricle with each beat of the heart is called the:

Back 26

Stroke volume.

Front 27

The path of blood flow within the systemic vascular system is:

Back 27

Arteries, arterioles, capillary beds, venules, veins

Front 28

An increase in parasympathetic activity (primarily by the vagus nerves) causes:

Back 28

A decrease in both heart rate and cardiac output.

Front 29

How does the wall of a vein differ when compared to an artery:

Back 29

The middle coat is relatively thin

Front 30

Which one of the following is caused by a decrease in venous return to the heart:

Back 30

A decrease in stroke volume and cardiac output.

Front 31

Which one of the following is the correct sequence going from the outermost to the innermost layer of a blood vessel wall:

Back 31

Tunica externa, tunica media, tunica intima

Front 32

Which one of the following blood vessels is a direct branch of the ascending aorta:

Back 32

Both the right and left coronary arteries.

Front 33

Which one of the following does NOT receive blood directly from the aortic arch:

Back 33

Right common carotid artery.

Front 34

The dorsal pedis artery that supplies the dorsum of the foot is the terminal branch of the:

Back 34

Anterior tibial artery.

Front 35

The carotid artery is located in the:

Back 35

Neck.

Front 36

The superior vena cava:

Back 36

Drains blood from the brachial vein, then empties that blood into the subclavian vein.

Front 37

The brachial vein:

Back 37

Drains blood from the radial and ulnar veins, then empties that blood into the axillary vein.

Front 38

The umbilical vein carries:

Back 38

Oxygen and nutrients from the placenta to the fetus.

Front 39

Which one of the following blood vessels in the fetus has the highest concentration of oxygen:

Back 39

Ductus venosus

Front 40

Which one of the following areas is NOT a pressure point:

Back 40

Renal artery

Front 41

In which one of the following blood vessels is blood pressure the highest:

Back 41

Arteries.

Front 42

Peripheral resistance is increased by:

Back 42

Atherosclerosis.

Front 43

Generalized vasoconstriction occurs as a result of:

Back 43

An increase in sympathetic Nervous system firing

Front 44

Substances tend to leave the bloodstream at the arterial end of the capillary because:

Back 44

Blood pressure is higher at the atrial end of the capillary.

Front 45

Varicose veins are caused by:

Back 45

Incompetent venous valves.